Paver-mixer crane



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- Fl. H. HEME PAVER. MIXER RANE Filed ne. 29A.- 1920' e sheets-sheet 1 gap@ 8 11923, 114694-2 Y F. H. HERNE PAVER MIXER 'CRANE Filed Dec. 29. 1920` 6 Sheets-Sheet 2 Sept 118 E923. lAAZ F. H. HERNE PAVER MIXER CRANE Filed Dec 29. 1920 Sheets-Sheet 3 dnne/130 Spt.. 18 i923..

. F. H. HEINE PAVER MIXER CRANE Filed Dec 29. 1920 6 Sheets-She'et 4 H. H-ESLENE PAVER MIXER CRANE FiLed Dec. 29,. 1920 Sheets-Sheet 5 OOO @www

F, H. HEME PA VER MIXER CRANE Filed Dec. 29 1920 46 Sheets-Sheet Patented Sept.. l, w23..

FERDINAND H. HEINE, 0F MILWAUKEE, WISCONSIN, ASSIGNOR,`BY MESNE ASSIGN- Meurs, 'ro KOEHRING or WISCONSIN.

COMPANY, 0F MILWAUKEE, EVISCONSEN, A CORPORATL'ON PAVER-MIXER CRANE.

4Applitxition led December 29, 1920. Serial No. 433,750.

To all whom it may concern y Be it known that I, FERDINAND H. HEINE, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Paver- Mixer Cranes, of which the following is a Specification.

.ln the art of paving streets, roads and the like with concrete, and especially in connection with the paving of roads, the system is now being largely practiced of supplying the aggregates of the concrete by an industrial railway alongside of the road site. The cars of the railway are equipped with removable hoppers or bodies in the form of batch boxes adapted to contain the aggregates to be mixed in a mixing machine which travels over the subgrade being paved. I

With the above general statement of the mode of supplying the aggre ates to the mixing machine it may be unc erstood that the present invention proposes a machine in the form of a combined paver and crane, the paver comprising a distributing means associated with the mixing means. The distributing means is usually a boom and bucket and the mixing means a. mixing drum. More specifically speaking, the design of the present machine includes a mobile support or truck equipped with a power plant arranged.

to operate the mixing drum, the distributing unit, preferably a boom and bucket attachment, and the' crane which is peculiarly mounted for counter-balancing effect in relation to the distributing unit, and stabilized by reason of the peculiar relative mounting of the mixing drum itself; the machineV asa whole being furthermore driven by said power plant.

In addition to the foregoing general features of themachine, I propose to employ a special design of box or hopper for holding the aggregates, one which may form a car 'body where an industrial railway is employed. or which may constitute a unit adapted to be carried by a truck if` the supply of aggregates is to be carried by trucks in accordance with the particular lsystem of supply employed upon the job where the paving is being laid. The batch box is used in connection with especially designed grappling means forming a part of the crane feat-urel of the machine, where-by automatic dump ing of the batch box may be effected when theulatter has been raised and superposed inA such as the distributing unit, mixing unit,

crane unit, and supporting unit or truck are designed for control by a` single operator rendering the machine easy to manage in the performance of its several functions.

In the accompanying drawings Figure l is a side elevation of a machine embodying the invention, certain features which are not shown in detail being somewhat diagrainniat-ically illustrated;

Figure 2 is a somewhat enlarged view of the truck or supporting unit, and the mixing and crane units more clearly illustrating the arrangement of these parts;

Figure 3 is a rear elevation looking toward the crane end of the machine;

Figure 4 is a duplex view of the batch box and upper portion of the crane illustrating in full lines the position of the box previous t'o dumping, as it reaches a point above the mixer supply hopper, and dotted lines illus- (rating the dumping action;

i' Figure 5 is a view showing the batch boxin vertical section, saine broken away to more clearly illustrate the way in which the dumping cable is capable of being tripped by movement of the boom of the crane to its batch box elevating position; y

Figure 6 is a plan view showing the gear ringand the supporting base upon which respectively are mounted the crane and the mixer with'its sup-porting frame;

Figure 7 is a. vertical view through the parts shown in Figure 6;

Figure 8 isl apeispective view-showing somewhat diagrammatically the method of training the hoisting cable of the crane over end supporting the mixer C. This truck A affords a portable structure being equipped with Wheels and caterpillars 1 and 2 or equivalent meansA through the medium of which the machine may be propelled forward. As seen best in Figure 1, the distributing unit D extends from one end of the framework 3 of 'the Amachine and the crane E extends fromthe opposite end being supported in a peculiar manner to be counterbalanced largely by the mixer C and its associated distributing unit D.

Distributing unit D may be of any conventional type and is illustrated as comprising the boom 4 and the distributing bucket 5 adapted" to be propelled in' and out along the boom by suitable means not illustrated, but which will be understood by 'those versed in the art upon reference to such patents as United States Patent of Koehring, Reissue No. 13,617, September 16, 1913, and Lichtenberg No. 1,141,470 of June 1, 1915. I show a somewhat different design of distributing unit but the same is not material to the invention as noted above. The driving mechanism for the bucket 5 will be operated from the power plant B.

Figures 6 and 7, plainly show 'the method of supporting the mixer C and the crane E upon the truck A. For this purpose I use a circular base frame or spider fastened rigidly by its flanges'7 to the side sills of the truck 'A and connected by suitable brackets 8 with ithe frame elements of the machine which are fabricated in ay substantial maiiner. The frame or spider'G is circular so as to permit the gear ring 9 to extend therearound for rotative movement in relation thereto, said ring 9 being mounted upon rollers 10 which operate in a circular track forming the peripheral portion of the spider 0r base frame 6 and designated at 11.' Other rollers 12 are mounted so as to be carried by the ring 9 and operate to carry the thrust incident to the movementof the boom of tle crane E, in association vwith the rollers 1 Upon the frame or spider 6 are jouriialed suitable rollers 14 mounted in bearings 15 and suppor'ting the drum of themixer C in a manner to permit free rotation of said drum.

As seen best in Figure 6, the gear ring 9 is provided with offstanding brackets 16 to which are pivoted the legs of the boom of crane E, the point of pivotal support being designated 17. A hopper 18 is mounted on the framework 3 so as to feed aggregates discharged thereinto fiom the batch box 19, into the drum of the mixer C. The boom of crane E is adapted to be raised and lowered by. means of a cable 2O adapted to be Wound about the hoisting drum 21 seen best in Figure 3, the latter being driven from power plant im .aiiysuitabltI inea-rfa ing means lfor the batch box, to be later described. Froin the double pulley 25 the cable passes upwards over a s lieave 26 near lis attached to the grappling andsuspei'id-4 the upper end of the boom aforesaid., thence downwards around a sheave -27 on -the bracket 23, after which said c able'is extended upwards and permanently connected withy the boom preferably by a connection 23 attached to the axis of the sheave Q6. At a point intermediate tliesheaves Q6 and 27 the cable 20 is equipped with an abutment 29 adapted to strike a stop clement 30 on the bracket device 23. The manner in which thecable is ti'ained over thesheave's connected with the batch box .19 willnow be evident. 9x .c

Figure 1 shows the mounting of the drum of the mixer C upon the rollers 14, and

the drum is adapted to be rotated by gears 31 on a main drive shaft 32 leading from the engine or power plant B, said gears 31 meshing with ring gears 33 which surround the drum of the mixer.

Suitable drive means are employed for operating the drum 31 from -the shaft 3Q, in the way of intermediate gearing, clutch, y

and'brake mechanism,l the clutch to connect the drinn with the shaft I32 for winding the cable 2() to raise 'the batch box and the boom of the crane E, and the brake. being employed to control opposite 0r gravitating movement of said parts when the drivingl force is discontinued. The rotation of the crane E is effected by utilizing a vertical shaft '34 equipped at its upper end with a pinion 35 to mesh with the ring gea-r 9 aforesaid. At

its lower end the shaft 34 has a bevelled vious t0 one skilled in the art. At its front' y end the shaft 38 is provided with a bevelled l gear 39 to operate a gear 40 which issuitably connected `lto drive the front caterpillars of the machine.

The several shafts will be provided with suitable bearings and obviously the method of driving the parts as previously set forth may be modified in a` numberof different ways so long astlie operation of the parts is i obtained as necessarv'and desired. 'Figures 4 and 5 best show the batch box elevating and dumping meansand referring thereto it in guides on opposite ends of the batch box y batch box.

meagre will be noted that the batch box 19 is equipped wit-h the downwardly openable dumping doors 41 pivoted at .42. The doors 41 are attached at -`theirsopposite ends to pairs of links 43, the upper' ends of 'each pair of links being pivoted to a slide 44 mounted 19. At each end of the 4batch box are provided the loops or connecting members 45 rigidly attached to the box inside the latter and just opposite the slides 44 which are likewise equipped with loops`46 at their upper ends. Rigid links 49 connectthe loops 46 of the slides 44 with a crosshead 47 forming'a part of the suspending' means for the Below the crosshead 47 is a smaller crosshead 48 the opposite ends of which are equipped with guide bars 50 having hooks 51 at their lower extremities to engage in the loops 45 aforesaid. Likewise the rigid links 49 have detachable hooks to engage in the loops 46 of the slides 44. The guide bars 50 engage between guide lugs 52 on the upper crosshead 47 and maintain the two crossheads in proper relative positions on relative move/ment of the same. The suspending sheave 25 around which the cable 20 passes is a double sheave so that a second cable 53 may pass thereover, said second sheave being attached to the lower crosshead 48 at one end, the other end of the cable 53 being secured to an eye-bolt 54 on the boom of the crane E. Adjacent to its point of attachment to the bolt,54 the cable 53 passes over two spaced rollers 56, these rollers being adapted to move to positions above and below an actuating roller orwheel 57 carried by the upper portion of the framework 3. AThe rollers 56 are grooved whilst the roller 57 is much wider and has a smooth periphery as seen best in Figure 5. The housing 25a for the sheave 25 has a suspension hook 58 at its lower portion which engages with an eye or similar fastening on the upper cross head 47. If desired as shown inY Figure 5. two of the sheaves may be provided in conjunction with the double sheave or sheaves arrangement at 25, there being a small intermediate sheave 25b over which the dumping cable 53 operates. Under these conditions the hoisting cable 20 of the crane may be looped about sheaves 24and 25 in a well known and conventional manner.

lVth the foregoing in view the general operation of the invention will be now explained. Assuming that the mixer C has not yet been charged the cycle of operation or the parts from` the beginning would be substantially this: The crane E is lowered sutiiciently to enable its grappling or suspending devices to be attached by the hooks 51 to the slides 44 and loops 45 of the batch box 19 whatever form said box may take for reasons previously suggested. The crane, of course, has a radius of movement of about e180; so that the batch box may-be -lpieked-upffrbm either side of the machine or" from a point in rear thereof, the gear 9 being actuated for such purpose. It is however necessary'thatf-the crane E be swung so that its boom is in rear of the hopper 18 before-the' batch box is raised for dumping into the saidhopper. We shall assume that the crane has been brought tothe posit-ion practically as illustrated in Figurel wherein the batch box has been lifted from the car or motor vehicle. This lifting of the batch box is caused'by the initial operation of winding the cable 2O on the drum 21. When the housing 25a of the lower sheaves 95 abuts with that of the upper sheaves 24, as shown -in Figure 1, the movement 'of the cabletransmits movement to the boom of the crane E, and the raising of said boom takes place. As the upward limit of movement of the boom is reached the dumping cable 53 moves into contact with the actuating roller 57, the latter entering the space between vthe rollers or grooved wheels 56 (see dotted lines in Figure 4). A shortening or pull upon the dumping cable 53 is thus caused thereby raising the crosshead 48 connected with the batch box, relatively to the crosshead 47 which remains stationary, being suspended from the sheave housing 25a. The raising of the crosshead 48 raises the batch box 19 bodily causing the box to slide upward relatively 4to the slides 44 on its ends. This effects a. dumping of the doors 41 in an obvious manner and the contents of the batch box are discharged into the hoppcr 18 and pass from thence into the mixer C. After being mixed in the mixer C the aggregates by which the concrete will be formed are discharged into the bucket 5 of the distributor and caused to be discharged from said bucket 5 upon the site where the concrete is to be deposited. Any means well known in the artmay be employed to discharge the materials from the mixer C to the bucket 5. I

/ ln .the modified construction of the invention shown in Figure 9 it is contemplated to provideV the same general units which have been set forth in respect to the previously described construction. the loading or charging unit comprising the same being somewhat differently disposed, however. ln the present case said unit is located at one side of the mixer unit'. Furthermore the boom of the crane E in Figure 9 is supplied with a chute or charging device 59 which moves with the boom and constitutes effectively an extension ot the hopper 18 carried by the frame 3 of the machine.

In this construction the boom of the crane E is pivoted at 17 upon a gear ring'formed with worm teeth designated 9. lith this gear ring meshes -a worm 35 adapted to be driven in any suitable manner from the l power'plant of the machine so as to cause turning of the boom of the crane. .'The dumping mechanism for the bucket will be the same as previously described in allessential particulars and involves the dumping rope 53v having its lower ends secured to the separating means adjacent to the pivot 17 of the boom, and passing about a grooved wheel 60 carried by the base or mobile truck on which the crane is mounted. The boom ofthe crane E has a grooved wheel adapted to engage the dumping cable 53 as the boom reaches its upper limit of movement when hoisted. The wheel 60 is effective to deect laterally and cause a pull to be exerted on the dumping cable 53 at the time above mentioned, whereby the batch box 19 will be automatically'dumped. In this construction the cable winding drum 2l may be employed and operates in the same manner as described in the previous construction, having a slightly different disposition upon the machine, however.

I In respect to both constructions of the machine illustrated` the cable 20 is paid out from the drum 21 and permits lowering of the boom E until the abutment 29 of the cable strikes the stop 30, thus limiting the downward movement of the boom. Thereafter the boom may be swung over the car 'and continued paying out of the cable 20 results in separating of the sheave housing 25n and 25b and permit-s of lowering the batch box upon a car or vehicle truck as the case may be. l

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. -In a machine of the class described, in combination, a mobile support, a concrete aggregates charging unit mounted on said support and comprising a crane including a'base, a mixing unit adapted to receive the aggregates.A from the charging unit and to supply mixed concrete to a distributing unit, and means supporting the mixing unit upon the base of the crane to stabilize the latter upon the support. V

2. In a machine of the class described, in combination. a mobile support, a mixing unit mounted thereon, a distributing unit extending from the support at one side ot the mixing unit, a loading or charging unit mounted on and extending from the support at a point ydiametricallj7 opposite the said distributing unit and comprisingr a crane in'- cluding a base, a power plant carried by said mobile support and common to the several units aforesaid, and means supporting the mixing unit on the base of the crane to stabilize the latter.

materials to the mixer, comprising a boo-m consisting 'of spaced side members adapted to receive therebetween the charging hopper of the mixer as the boom is raised 'to a position for discharging materials into said hopper, means connecting the boom with the support enabling vertical Inove- `ment of the boom,v and enabling swinging of the boom laterally as well, and operating Ameans for raising and lowering and swing-` at one side of the mixing device, a distributing unit extending from the machine at the sident the mixing device diametrically opposite the boom ot the crane, and operating means for the crane, mixing device, and distributing unit. y

5. In'a portable concrete paving machine, the combination of av portable support adapted to be operated under power to advance with-the Work as it proceeds, a concrete mixer' mounted upon said support, a distributing boom pivoted to the support for horizontal swinging movement. and extending longitudinally from the discharging end ,ot-the mixer, a distributing device adapted to travel on said boom. a crane for charging the mixer and comprising a boom connected with the support for horizontal swinging movement, and extending from the support longitudinally thereof in a direction opposite the distributing boom and adapted to counterbalance said boom and bucket thereon, and a grappling apparatus connected with the boom of the crane for hoisting materials to be charged into the mixer.

6. In a machine of the class described, the combination with a portable truck, of a power plant thereon, a base plate carried by the truck, a mixer supported on said base plate for.,rotation, a framework extending upwardly from said base plate, a crane gear carried by the base plate, a boom carried by said gear to be turned thereby` hoisting means connected with the boom and framework and operable from said power plant for elevating a load, means connecting the. power plant to operate the mixer, a distributing unit carried by said frame to receive materials from the mixer for distribution and arranged so as to counterbalance vthe boom.

7. In a machine of the class described, the combination with a mobile support, a mixer thereon, and means for charging said mixer embodying a crane comprising a boom movably mounted on and adapted to be raised and lowered and swungin a horizontal plane, and hoisting and dumping means carried by said boom including a grappling device for engaging and elevating a batch box, and automatic means connected'with said grappling device for'eifecting move-v thereby connecting with it-a dumping batch box, a hopperto receive materials from the 1 batch box which may be connected with the boom grappling means, and a dumping contrivance operable as an incident to movement of the boom to carry the batch box above said hopper. 1

9. A machine -as claimed in claim 8 connection leading from `the body of `the machine to the cross heads of the grappling device whereby at a certain point in the` movement of the boom relative movement is imparted to. the crossheads to cause actuation of the connections for attaching the same to the batch boxr 10. In combination, a batchbox comprising openable doors, actuators attached -to said doors, connectors for connecting the b'ody ofthebox to a grappling fdevice, a grappling device comprising spaced crossheads, means for raising said crossheads,

Ameans whereby the crossheads may be connected with the aforesaid connectors and actuators and a dumping contrivance attached to one of said crossheads to impart movement thereto relative to the other cros'shead at a certain point in the movement of the batch box by hoisting meanstherefor, whereby to effect dumping of the batch box, and means for hoisting the batch box to a point at which its hall be dumped.

11. ln a concrete paving machine, the combination of a portable support, self contained power mechanism for driving said support along a sub-grade to be paved, a. distributing mechanism at one end of the support and a charging crane at the other end of the support, each comprising horizontally swinging booms arranged to extend in opposite 'directions from each other, a concrete mixer disposed between said booms, and a hoisting apparatus connected Awith the charging'crane boom comprising batch box grappling means and hoisting;

members attached thereto, and Ymeans Yacting on said hoisting members and grappling means whenelevated to charge the mixer,

whereby said grappling means may be ca-used to operat'eautomatically for effecting batch box discharge operations.

l2. In a machine of the class described,the

combination with a mobile support, a mixer thereon, and means for charging said mixer embodying a crane comprising a boom movably mounted on and adapted to be raised and lo'were d and swung in a horizontal plane', and hoisting and dumping means carried by said boom including a grappling device for detachably engaging and elevating mounted on and adapted to swing in a horizontal plane, 1 and hoisting and dumping `means carriedby said boom including a wherein the dumping means comprises a w grappling device consisting of grappling a batch box, with automatic means connected with the grappling device for effecting movement ofthe grappling members to automatically dump a batch box at a predetermined point in the movement of the boom.

14e. In a concrete paving machine, the

combination of a portable support, a concrete mixer thereon, means for charging said mixer comprising a crane consisting` of aboom adapted to be raised and lowered and connected with said support, power means to lower and raise said boom, a batch box, grappling means connected with the power means for operation thereby and having connection with the batch box, and means whereby initial movement of the grappling means is adapted to raise the batch box, and subsequent movement of said grappling means will raisethe boom and the batch box together to bring the batch box to discharging position.

15. ln a concrete paving machine` the combination of a portable support,a batch box hoisting apparatus thereon consisting of a crane comprising a boom, quickly detachable batch box grappling means comprising relatively movable members, means connecting one of said members with the batch box body, said batch box embodying dumping doors, means connecting the other of said members with said doors, and means for compelling a relative movement of said members to effect a dumping action of the doors of the box for discharging said box. 16. ln a concre-te paving machine, the

I combination of a portable support, a batch box hoisting apparatusI thereon, the latter. including a crane embodyinga movable boom, hoisting means for said boom, includllll 'lili ing grappling means for a batch box, a batch box comprising dumping` doors, the grappling means aforesaid including/complemental members adapted for relative l `movement, one member detachably connectcombination .of a portable support, a conf:

crete mixer mounted thereon, a charging hopper for said mixer leading thereto, a charging means for feeding aggregates into said hopper, including a crane consisting of a swinging boom pivoted to the portable support, power means for raising and lowering said boom. grappling apparatus connect ed with said power means and comprising a pair of relatively movable members, a batch box comprising dumping doors, means for detachafioly connecting one of said members of the grappling apparatus with the doors, and means for detachably connecting the other of said members with the body of the batch box, and `control mechanism for causing relative movement of the said members whereby to cause a discharging action of the batch box, the boom of the crane being constructed so as to elevate the batch box to a point above the charging hopper of the machine.

18. In a' concrete paving machine the combination of a portable support, a concrete mixer mounted thereon, a ,charging hopper for said mixer leading thereto, a charging means for feeding aggregates into said hopper, including a crane consisting of a swinging boom pivoted to the portable support, power means for raising and lowering said boom, grappling apparatus connected with said power means and comprising a pairof relatively movable members, a batch box comprising dumping doors, means for detachably connecting one of said members of the grappling apparatus with the doors, and means for detachably connecting the other of said members with the body of the batch box, and control mechanism for causing relative movement of the said members whereby to cause a discharging action of the batch box, the boom of the crane being con structed so as to elevate the batch box to a point above the charging hopper ofthe Inachine, the boom being constructed of side members adapted to straddle the charging hopper of the mixer as the boom raises, to bring the batch box over said hopper, and the means for controlling discharge of the batch box being automatic.

19. In a machine of the class described the combination .of a portable support and batch box hoisting apparatus thereon, comprising a crane having a boom, a batch box comprising a body and dumping doors, hoisting means intermediate the boom and p said batch box, and including cross-heads, one crosshead connected with the body of the batch box, and the other crossliead connect-v ed with the doors, together with cable hoisting means arranged to effect relative movef ments of said crossheads whereby to ycprre-L spondingly effect relative movement of the T5v body'of the batchbox and its doors so as to effect dumping operation of the batchbox, the connections between the crossheads and the batch box andits doors being detachable' whereby the batch box may be entirely disconnected from the hoisting means afore said. A

20. In a machine of the class described, a hoisting boom, means for raising and lowering said boom comprising a hoisting cable connected with the boom, and sheave devices connected with` said cablej together with grappling means carried by said sheave devicesfor cooperation with a batch box to be handled bythe machine, the sheave` devicesV being adapted-for relative movement to enable the grappling means to move independently of the boom, and said sheave devices being co-operative with one another so that at a predetermined point in their movement they will abut and eiieet movement of the'boom on the further operation of the hoisting cable.

2l. In a machine of the class described, a hoisting boom, means for raising and low-' ering said boom comprising a hoisting cable connected with the'boom, and sheave 'devices connected with said cable, together with grappling means carried vby said sheave devices for co-operationwith a batch box to MN5 be handled by the machine, the sheave de'- vices being adapted for relative movement to enable the grappling means to move independently of the boom, said sheave devices being co-opera-tive with one another so that at a .predetermined point in their movement they will abut and effect movement of the boom on the further operation of the hoisting cable, and stop means connected with the hoisting cable so that'on paying out said cable the boom will be stopped from movement at a predetermined time, and further paying out of the cable will cause an independent movement of certain of said sheave devices. 120

22. lin batch box hoisting apparatus as described, in combination, a support, a crane thereon comprising a bo`om, and cable hoisting means associated with the boom and support, and including grapplingv devices embodying parts to be detachablv connected one to a batchv box body and the other to doors of a batch box, means to actuate lthe cable to move the box body and its doors together, and automatic means to cause a rela- 13 tive movement of said parts and thereby the batch box and its doors, as the same reach a predetermined position, so that dumping oi the contents of the box takes place.

23. In batch box hoisting apparatus as described, in combination, a support, a crane thereon comprising a boom, and cable hoisting means associated with the boom and support,- and including grappling vdevices embodying parts to be detachably connected one to a batch box body and the other to doors of va batch box, means to actuate the cable to move the box body and its doors together to 'elevate the saine preparatory to discharge ot' the box, a cable connected to one of the said parts to cause a special indet pendent movement thereof and thereby cause relative movement of the box body and its doors, to dump the box, and a member to act on the cable automatically in the hoisting action of the box -to etfect such relative movement of the parts.

24. In batch boxV hoisting apparatus as de-' scribed, in combination, a support, a crane thereon comprising a boom, and cable hoisting means associated with the boom and support, and including grappling devices to connect with batch box apparatus for hoisting the saine, and a cable for initially raising the batch box apparatus alone, and means acted on by the cable to raise the said apparatus and the booin together.

25. In batch box hoisting apparatus as described, in combination, a support, a crane thereon comprising a boom, and cable hoisting means associated with the-boom and support, and including grappling devices to connect with batch box apparatus for hoistingV the saine, and a cable for initially raising the batchbox apparatus alone, and means acted on by the cable to raise the said apparatus and the boom together, and lower them simultaneously, and a device coacting with the cable in its. lowering movement to limit the lowering of the boom and permit additional movement of the batch box apparatus alone.

26. In batch box hoisting apparatus as described, in combination, a support, a crane thereon comprising a boom, and cable hoisting means associated with the boom and support, and including grappling devices to connect with batch box apparatus for hoisting the same, and a cable for initially raising the batch box apparatus alone, means acted on by the cable to raise the .said apparatus and the boom together, and lowering them simultaneously, and a device coacting with the cable in its lowering movement to limit the lowering of the boom and permit additional movement of the batch box apparatus alone, and comprising an abutment applied to said cable and engageable with the support to prevent the boom Y movement downward whilst the batch box apparatus movement continues.

In testimony whereof I affix my signature.

FERDINAND H. HEINE. 

